Results 41 to 50 of about 131,295 (296)

A new impedance matching method for an ultra-wide band and dual circularly polarised feed [PDF]

open access: yes, 2016
In traditional antenna design, metal components are not placed in the central part of the antenna as they change the characteristics of near field radiation.
Chen, Zhi Jun   +6 more
core   +1 more source

A Frequency-Tracking and Impedance-Matching Combined System for Robust Wireless Power Transfer

open access: yesInternational Journal of Antennas and Propagation, 2017
One of the greatest challenges to power embedded devices using magnetically coupled resonant wireless power transfer (WPT) system is that the amount of power delivered to the load is very sensitive to load impedance variations.
Yanting Luo   +3 more
doaj   +1 more source

A W-Band Amplifier With a New Wide-Band Interstage Matching Technique Using Self-Resonance of a Microstrip-Coupled Line

open access: yesIEEE Access, 2022
A new interstage matching technique is presented for design of a wide-band multi-stage amplifier using commercial 60 nm GaN-on-silicon technology in the W-band.
Sunwoo Lee   +4 more
doaj   +1 more source

Impedance of rigid bodies in one-dimensional elastic collisions

open access: yes, 2012
In this work we study the problem of one-dimensional elastic collisions of billiard balls, considered as rigid bodies, in a framework very different from the classical one presented in text books. Implementing the notion of impedance matching as a way to
de Oliveira, Bruna P. W.   +2 more
core   +1 more source

Experimental and Theoretical Study on Influence of Different Charging Structures on Blasting Vibration Energy

open access: yesShock and Vibration, 2015
As an important parameter in blasting design, charging structure directly influences blasting effect. Due to complex conditions of this blasting and excavating engineering in Jiangsu, China, the authors carried out comparative researches with coupling ...
Wenbin Gu   +4 more
doaj   +1 more source

Wideband strip antenna surrounding a ground plate

open access: yesThe Journal of Engineering, 2022
A wideband planar antenna, which is composed of a ground plate and a strip surrounding the plate, is proposed. Wideband impedance matching with fractional bandwidth over 130% is achieved by making the distance between the strip and the ground plate ...
Kyoichi Iigusa   +3 more
doaj   +1 more source

On the positive real property of the impedance matching controller for double cascade-connected damped mass-spring systems

open access: yesNihon Kikai Gakkai ronbunshu, 2018
This paper considers the positive real property of the impedance matching controller for double cascade-connected damped mass-spring systems, whose mass is connected to beyond the adjacent masses.
Takuya MIDORO, Kenji NAGASE
doaj   +1 more source

Design of an underwater acoustic bend by pentamode metafluid

open access: yes, 2017
We design an impedance matching underwater acoustic bend with pentamode microstructure. The proposed bend is assembled by pentamode lattice. The effective density and compressive mod- ulus of each unit cell can be tuned simultaneously, which are ...
Chen, Yi   +4 more
core   +1 more source

Novel Genetic Risk Factor Identified for L‐Asparaginase‐Induced Pancreatitis in Pediatric Patients With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background L‐asparaginase is a critical component in treatment protocols for pediatric acute lymphoblastic leukemia. Acute pancreatitis reactions can necessitate delays and, in some cases, discontinuation of L‐asparaginase, which compromises outcomes.
Edward J. Raack   +39 more
wiley   +1 more source

Research on load adaptive impedance matching of magnetic resonant wireless power transfer system

open access: yesGong-kuang zidonghua, 2020
In view of problem that current impedance matching methods ca't automatically adjust load impedance of magnetic resonant wireless power transfer system(MR-WPT) when load changes, which leads to reduction of energy transfer efficiency of the system, a ...
BAI Jingcai   +3 more
doaj   +1 more source

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